Home / 2,107.26-3,159.53-875.52

Finding the Fourth Proportional to 2,107.26, 3,159.53 and 875.52

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Solution

The fourth proportional to 2,107.26, 3,159.53 and 875.52 is: 1,312.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.26 : 3,159.53 = 875.52 : x
  2. Step 2: Convert to fraction form
    2,107.26/3,159.53 = 875.52/x
  3. Step 3: Cross multiply
    2,107.26x = 3,159.53 × 875.52
  4. Step 4: Simplify right side
    2,107.26x = 2,766,227.33
  5. Step 5: Solve for x
    x = 2,766,227.33/2,107.26
  6. Step 6: Final answer
    x = 1,312.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.